Calystegia sepium subsp. roseata

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 78

(b) Subsp. roseata Brummitt , Watsonia 6: 298 (1967):

Stem, petiole and peduncle usually pubescent. Lamina glabrous or sparsely pubescent, usually long-acute; sinus acute. Bracteoles usually 10-15 mm wide. Corolla usually 40-55 mm, pink. Stamens 17-25 mm; anthers 4-6 mm. 2« = 22. Salt-marshes, maritime sands, waste places. Coastal regions o f W. Europe.